Isolated tricuspid valve endocarditis in immunocompetent juvenile patients: a series of three cases.

Right-sided native valve infective endocarditis is common in patients with congenital or valvular heart disease, intracardiac device, central venous catheter and intravenous drug abuse, usually manifesting in adulthood. However, in the absence of predisposing risk factors and in younger age groups, this disease may pose a diagnostic challenge. We report a case series of three juvenile patients with isolated tricuspid valve infective endocarditis without any risk factors and paucity of cardiovascular findings in two of them, in an attempt to highlight the importance of maintaining a high index of suspicion to arrive a timely diagnosis.